// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
description: Case mapping of astral symbols
es6id: 21.2.2.8.2
info: |
    21.2.2.8.2 Runtime Semantics: Canonicalize ( ch )

    The abstract operation Canonicalize takes a character parameter ch and
    performs the following steps:

        1. If IgnoreCase is false, return ch.
        2. If Unicode is true,
           a. If the file CaseFolding.txt of the Unicode Character Database
              provides a simple or common case folding mapping for ch, return
              the result of applying that mapping to ch.
           b. Else, return ch.
---*/

function Test() {
    assert.sameValue(
      /\u212a/i.test('k'),
      false,
      'Case mapping is not applied in the absence of the `u` flag'
    );
    assert.sameValue(
      /\u212a/i.test('K'),
      false,
      'Case mapping is not applied in the absence of the `u` flag'
    );
    assert.sameValue(
      /\u212a/u.test('k'),
      false,
      'Case mapping is not applied in the absence of the `i` flag'
    );
    assert.sameValue(
      /\u212a/u.test('K'),
      false,
      'Case mapping is not applied in the absence of the `i` flag'
    );

    assert(
      /\u212a/iu.test('k'),
      'Case mapping is applied in the presence of the `i` and `u` flags'
    );
    assert(
      /\u212a/iu.test('K'),
      'Case mapping is applied in the presence of the `i` and `u` flags'
    );
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
